The item that we have here is a great and an essential item if you are restoring, riding or racing your now vintage Kawasaki KZ400 Motorcycles.   This is an amazing and  complete 10pc engine Oil Seal Kit. Hard to find item! This is a great item if you just want to replace a few leaking seals, or if you are doing a full rebuild.  Often you can  just replace the ones that are giving  you problems and then do them all if you need a full rebuild down the road.   This Oil Seal Kit is correct for models built in 1978 and 1979, namely the KZ400B1 (1978), the KZ400B2  (1979), and KZ400C1 (1978) and KZ400H1(1979) and 1980 1981 models. If your engine number is #141331 and HIGHER then this is the correct seal kit  for your engine.  Some early production 1978 1979  KZ400 engine's used a different style seal kit, which we do have in a different listing on our website.  We have the other style oil seal kit too in our  store if your engine # is lower than #141331... please see the 1974-1978 seal kit that on our website.  Top quality aftermarket item. We only sell the best! This has both crank seals, shift shaft seals, ignition advance seal, tach seal, kick start seal, starter seal, early style clutch pushrod seal and more....10 seals in total!   That is it! I look forward to doing business with you!